Anacortes weather in August

In August, Anacortes sees average daytime highs of 68°F and overnight lows near 58°F, with 1.4 in of rain across 4.6 wet days and about 14.1 hours of daylight. It is the 1st-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 68°F through the month. The sky is clear or mostly clear about 52% of the time in August, and the air most often feels comfortable.

Daylight stretches from about 14 h 54 min at the start of August to 13 h 18 min by month's end. Set against the rest of the year, August is Anacortes's 2nd-clearest and 12th-windiest month. For the whole year in context, see Anacortes's year-round climate.

Daytime high
68°
1st warmest
Overnight low
58°
12th coldest
Rainfall
1.4 in
4.6 wet days
Daylight
14 h 12 min
5:10 AM – 7:19 PM
Cloud cover
43%
2nd clearest
Wind
4 mph
12th windiest
Solar energy
5.56 kWh/m²
Travel score
7.4
out of 10

Anacortes is city in Skagit County, Washington, United States.

Density
450/km²
people per km²
Founded
1891

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 68°F through the month.

A typical August day in Anacortes reaches about 68°F in the afternoon and slips back to 58°F overnight — a 10°F spread between the day's warmth and the night's chill. On most days the high lands between 62°F and 74°F. Set against its neighbours, August runs on par with July and about 4°F warmer than September.

50°60°70°80°151015202531
Avg high (°F)Avg low (°F)
16858
26858
36858
46858
56858
66858
76858
86858
96858
106858
116858
126858
136858
146858
156858
166858
176858
186858
196858
206758
216758
226758
236757
246757
256757
266757
276757
286757
296657
306657
316656

How August really feels in Anacortes

Once humidity and wind are folded in, August averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

August sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Anacortes weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan44° / 38°7.218.33.18.60.7
Feb46° / 38°4.714.62.59.91.1
Mar49° / 40°5.718.31.411.61.7
Apr53° / 44°4.114.60.213.42.7
May58° / 49°3.010.30154.3
Jun62° / 53°2.28.4015.85.5
Jul67° / 57°1.04.3015.57.3
Aug68° / 58°1.44.6014.17.4
Sep64° / 55°2.88.4012.46.0
Oct56° / 48°5.614.2010.63.4
Nov49° / 42°8.218.40.991.5
Dec44° / 38°7.1182.98.20.6

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 16% of August, with mostly cloudy or overcast conditions the remaining 33%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17525
27426
37327
47228
57228
67129
77030
87030
96931
106931
116931
126832
136832
146832
156832
166832
176733
186733
196733
206634
216634
226535
236436
246337
256337
266337
276337
286238
296337
306337
316337

Chance of precipitation in August

Any precipitation

Anacortes gets around 1.4 in of rain over 4.6 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 14% and peaks near 21% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
111
211
311
411
511
611
711
811
912
1012
1112
1212
1312
1412
1513
1613
1713
1813
1914
2015
2115
2216
2317
2418
2518
2619
2719
2820
2920
3021
3121

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels comfortable — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the comfortable band about 55% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1355771
2355861
3345961
4345961
5336061
6335971
7326071
8326170
9326170
10326170
11326080
12326080
13335980
14345970
15355870
16365770
17375670
18395560
19405460
20415450
21425350
22435340
23455140
24465130
25475030
26484920
27494920
28504820
29514720
30524620
31534520

Wind in August

Winds average 4 mph in August, the calmest month.

Across August, daily wind ranges from about 4 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 h 54 min at the start of August to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 96 minutes over August. Sunrise moves from 4:49 AM to 5:31 AM, and sunset from 7:44 PM to 6:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.94:497:44
214.94:507:43
314.84:527:41
414.84:537:40
514.74:547:38
614.74:567:36
714.64:577:35
814.64:597:33
914.55:007:32
1014.55:017:30
1114.45:037:28
1214.45:047:26
1314.35:067:25
1414.35:077:23
1514.25:087:21
1614.25:107:19
1714.15:117:18
1814.15:137:16
1914.05:147:14
2013.95:157:12
2113.95:177:10
2213.85:187:08
2313.85:207:06
2413.75:217:04
2513.75:237:02
2613.65:247:00
2713.55:256:58
2813.55:276:56
2913.45:286:54
3013.45:306:52
3113.35:316:50

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.56 kWh/m².

For context, solar energy here swings from a low near 0.86 kWh/m² to a high of 6.43 kWh/m² in July across the year — August's 5.56 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.2Intense
46.2Intense
56.1Intense
66.1Intense
76.0Intense
86.0Bright
95.9Bright
105.9Bright
115.8Bright
125.8Bright
135.7Bright
145.7Bright
155.6Bright
165.6Bright
175.5Bright
185.5Bright
195.4Bright
205.4Bright
215.3Bright
225.3Bright
235.2Bright
245.2Bright
255.1Bright
265.1Bright
275.0Bright
285.0Bright
294.9Bright
304.9Bright
314.8Bright
Planning a trip in August

Hazard calendar for Anacortes

In seasonPeak

None of Anacortes's seasonal hazards are active in August. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Anacortes's rainy season runs October–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Anacortes?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.4
Sightseeing
1st-best month of the year
3.7
Beach & pool
1st-best month of the year

August is one of the better times to visit Anacortes for general sightseeing.

What to pack for Anacortes in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Anacortes sees daytime highs around 68°F and nights near 58°F. Worth packing: sun protection. About 5 days see rain.

sun protection

Sea temperature near Anacortes in August

The nearest coast averages about 54°F in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 16 mi away) is warmest in August at about 54°F and coldest in February near 46°F.

The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.

45°50°55°JanFebMarAprMayJunJulAugSepOctNovDecbracing
Sea temperature (°F)Comfort
Jan46Bracing
Feb46Bracing
Mar47Bracing
Apr48Bracing
May50Bracing
Jun52Bracing
Jul53Bracing
Aug54Bracing
Sep53Bracing
Oct50Bracing
Nov49Bracing
Dec47Bracing

UV index in Anacortes in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Anacortes peaks around July 17 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 18 at about 1 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highHighModerateLowJul 17UV 8Dec 18UV 1
UV index (midday)Level
Jan1Low
Feb1Low
Mar4Moderate
Apr5Moderate
May7High
Jun6High
Jul8Very high
Aug6High
Sep4Moderate
Oct3Moderate
Nov1Low
Dec1Low

Air quality in Anacortes in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Anacortes is worst in September — around 18 µg/m³ PM2.5 (moderate), about 3.2× the cleanest month (December, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1018 µg/m³Dec 176 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb9Good
Mar12Good
Apr12Good
May12Good
Jun11Good
Jul11Good
Aug18Moderate
Sep18Moderate
Oct12Good
Nov7Good
Dec6Good
Location & terrain

Where is Anacortes?

Anacortes sits at 48.5°N, 122.6°W, 23 ft above sea level, in United States. The nearest listed city is Mount Vernon, 14 mi away.

Topography around Anacortes

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Anacortes.

Within 2 miles, the terrain around Anacortes has only modest variations in elevation — a maximum elevation change of 558 ft around an average of 75 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,581 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 10,758 ft.

The land around Anacortes is covered by water (51%) and trees (25%) within 2 miles, water (61%) and trees (22%) within 10 miles, and trees (49%) and water (35%) within 50 miles.

2 miles
558 ft
10 miles
1,581 ft
50 miles
10,758 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Mount Vernon 14 mi · Oak Harbor 15 mi · Bellingham 18 mi · Arlington 31 mi · Oak Bay 32 mi · Gordon Head 32 mi · Victoria 34 mi · Saanich 35 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Anacortes (48.5126°, -122.6127°, elevation 23 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).